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Peter Miller asks what next?

Would people like a more complicated model

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Erfolg25/08/2018 16:23:37
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Peter

Forgetting the recent past, the differences between IC models and Electric are not significant,

For instance there is convergence with how a typical electric motor is mounted and large IC engines, the 50cc and upward types. That is they both are rear mounted, via a mounting plate.

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There is an increasing fashion to provide a removable nose.

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Then typically where the fuel tank would go, a little more room is provided to carry the Lipo

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Some times the CG requires the Lipo to go further back

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Again in a similar practice to many current IC models, the aileron servos go in the wing, adjacent to the surface. In some cases, it is because a centrally mounted servo could get in the way of the Lipo.

Perhaps the biggest difference, is that once an IC tank is in place, other than maintenance, there is no reason to gain access to it. Access is required to the Lipo for both connecting up the power system and switching out for charging.

In the case of the model under construction, I have made the upper part of the body removable.

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Although not of critical importance to the designer, the ESC needs to be in free air, for cooling. Often this is achieved by sticking it on the side wall of the motor mounting. In one case Tim Hooper used a cooling duct, styled like a carb inlet. or to a internal radiator. Getting air out is not really a big issue, as the full size outlets, particularly for air cooled engines can be made functional on models.

In essence from your current practices, nothing much is different at all.

I have thought from time to time, what ever the issues were with your Trimotor Bianca could have easily been dealt with with electric. As you could have run the model initially with the central motor, switched in or out the outer two at will.

Peter Miller25/08/2018 18:30:13
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10016 forum posts
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Hi Erfolg.

Yes, I have taken all those points on board as you will see in my "The Ohmen" which is coming out any day now.

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ohmen2.jpg

I definately allowed for air cooling to the motor and ESC.

I will be looking at a larger <Mss Demeanor. The trouble with Cassuts is that the fuselage gets very large as the wing area gets bigger which is why I liked Miss Cassy. So a future version would have a slightly slimmed down fuselage. or stretched wing.

The Cassutt picture that I have is for Vomet Comet, a light green one with sharks mouth and eyes. It apeals to me.

ohmen1.jpg

Daniel Cardona26/08/2018 11:12:01
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Ahh....So much mystery sometimes in names of these formula racers, never heard of vomet Comet, i tried a quick search on the net and couldn't find nothing, not even a cassut with a shark's mouth.

but i would fancy one of these cassut 3's , they look so slick, I imagine on with a slightly stretched fuselage and maybe a little narrower with somewhat and old school construction with a carved turtle deck instead of sheeting and perfectly adequate for I.C or E something similar like these new Electric formula One class

https://goo.gl/images/9LVB2X

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Getting excited now! ..whatever it would be bring it on peter!

looking forward

Daniel

Edited By Daniel Cardona on 26/08/2018 11:15:14

Peter Miller26/08/2018 12:03:53
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Vomet Comet is a standard original Cassutt. It isjust the colour scheme that apeals to me.

Erfolg26/08/2018 12:11:07
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Luckily I flew my original version without the UC in a Silent Fly Club, that was essentially electric gliders with an emphasis on current competition type gliders that frequently adorn the mag, the type that drain the average bank account than a Venezuelan Socialist Regime. No dire predictions were made, the model was successfully flown without any real comment.

I then moved to a Power Club whose models are often +50cc 3D monsters. Here there were mutterings about the short coupling, etc.

All of these predictions continued to be base less, the model being a Pussy Cat to fly.

The only issue there has been was my incompetence (once again) in that I did not mark the CG, when I attached an UC, lost the plan (since found) and placed the CG at 30%. So very wrong, almost impossible to fly, setting the CG to 25%, once more a Pussy Cat.

It may not be necessary to thin the Fuz, as there is a 1/4 or maybe up to 1/2 scale Cri-Cri, in the club, which is a big body on small wings. The construction is pretty light, but the important bit, It Flies Great.

 

This is my Casutt with UC, before another small change to the motor arrangement to facilitate maintenance. A new spun Spinner, and the real reason, my magnets were not consistently keeping the motor cover on

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Edited By Erfolg on 26/08/2018 12:11:47

Edited By Erfolg on 26/08/2018 12:12:54

Edited By Erfolg on 26/08/2018 12:13:46

Peter Miller26/08/2018 12:35:36
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10016 forum posts
1185 photos
10 articles

This is the voet comet 1.jpgone that I like!!!

vomet comet 2.jpg

Steve Adams15/07/2019 01:00:59
186 forum posts

Hi Peter,

I know this is an old thread but thumbing through some old Radio Modeller mags the other day got me thinking about your little Rock well Shrike Commander twin you did. I'd absolutely love to see you make a bigger more scale version for maybe two electric motors or 30 sized four stroke engines, would you ever consider it in the future possibly?

Kind Regards

Steve Adams

Peter Miller15/07/2019 08:27:25
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10016 forum posts
1185 photos
10 articles

Hi Steve.

Thanks for your comments.

An enlarged Shrike Commaner is not something that I had ever thought about. The best that I can offer is that I will put it on my list of things that might one day inspire me when I am searching for something new to design.

Ifand it is a BIG IF I did it would be electric.

At the moment I have having a complete rest from designing and just doing odd things such as an old design and a couple of kits.

Daniel Cardona23/07/2019 22:08:38
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163 forum posts
253 photos

How about a Bede BD8 ? Scaled for a nice 40 fourstroke or maybe something a bit bigger and suitable also for electric. Its small, constant chord wing , aerobatic and can easily fit in a small car.

wink

Daniel

martin collins 123/07/2019 22:34:50
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How about a nice unusual subject, Czechoslovakian Aero 145, my father owned one back in the 80`s, very much like a mini Heinkel 111

fletcher-vhduh-temora2014.jpg

Brian Dorricott 123/07/2019 23:58:14
80 forum posts
2 photos

I like the look at the Czech Aero 145 and no one else would have one down the field ! Go on admit it we all like " one upmanship " or call it originality if you like . As a relative beginner (2 years) I remember way back everything looked the same to me i.e. high wing monoplanes all looking similar and didn't grab me enough to take it up , I thought a few years ago such diversity I'll give it go and now we all seem to go for the same types over and over again . Is it function over form or do we just like what flies well ? I like the idea of modelling something out of the box ( don't mean ARTF ) even if it's not a great flyer at least we are not stagnating with designs . I admire the guys who take pictures and measurements and turn out a plan for a model of something out of the ordinary , wish I had the ability !

Hey you designers keep it up give all a bit of diversity .

Peter Miller24/07/2019 08:01:15
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The Bede is an aircraft that I have looked at in the past. I have never ruled it out but never really been driven to it. IT is a bit like my RV3 of a few years ago.

The Aero 145 is a very pretty aeroplane and with electric power would be very nice but so far has not inspired me to build one.

When it comes to ascale subject I find that it s hard to choose but suddenly I get hit with a design that I just have to build, My Li'l Cub was one and my MAK 15 MP which is on file with RCM&E were two such designs.

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kita attack2.jpg

At the moment I can't face the drawing board and am just doing some "pot boilers" but I may soon be drawing up and enlarged version of one of my old designs and converting it to electric power.

Joel McIntosh 205/08/2019 08:57:33
4 forum posts

Peter, have you ever designed a Percival Provost? I have watched your designs for many years and have never seen one.

Edited By Joel McIntosh 2 on 05/08/2019 09:03:10

Peter Miller05/08/2019 10:33:45
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10016 forum posts
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Posted by Joel McIntosh 2 on 05/08/2019 08:57:33:

Peter, have you ever designed a Percival Provost? I have watched your designs for many years and have never seen one.

Edited By Joel McIntosh 2 on 05/08/2019 09:03:10

No, never even thought of a Percival Provost. For some reason it just never appealed to me.

martin collins 105/08/2019 10:33:59
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165 forum posts
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There is an ARTF provost available, what about a Percival Proctor, seriously under modeled, lots of civil and military schemes available.......

Peter Miller05/08/2019 11:08:54
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10016 forum posts
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Then there is the Boulton Paul Balliol (YUK!)

I was once offered a lift up to London from Cornwall in one of those. I decided not to accept because I would have had to lug a parachute home and back to camp in Cornwall after the week end.

I later heard that if the pilots heard the engine cough they bailed out because once the Balliol started down it didn't glide and you couldn't get out.

Joel McIntosh 209/08/2019 03:53:48
4 forum posts

I really have enjoyed all of your designs, I just renewed my subscription in order to keep up with the new ones. Thank you for the reply. Perhaps I will have a go at my own design for the Provost using your techniques.

Peter Miller09/08/2019 08:28:19
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10016 forum posts
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Hi Joel,

Thank you for your kind comments, I am glad that you like my designs.

Definitely go for designing your own Provost. As I have said in the past, in the beginning start off with a proven similar design and then change the shapes to match what you want.

I can reccomend my book, Designing Moel Aircraft. There are several copies on Amazon secondary sellers including one at an insane price and Sarik Hobbies have them in stock.

Other people have said that this book has helped them learn to design. No complicated maths I promise youlaugh

Geoff Sleath09/08/2019 11:10:12
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3272 forum posts
251 photos

An excellent book and one I should use and put into practice myself but still useful when I've needed to modify (usually convert to electric) or repair models. There are some pictures of a young(ish) man either holding models or poring over a drawing board - can't think who it might be.

Geoff

Peter Miller09/08/2019 11:25:10
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10016 forum posts
1185 photos
10 articles

Got a lot less hair and more wrinkles now!!

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